High-pressure cleaning device

Abstract

The invention relates to a high pressure cleaning apparatus (10) comprising a motor pump unit (60) having a motor (56) and a pump (58) drivable by the motor (56), and an electrical device located above the motor (56) and a bonnet (96) covering the electrical device (74) and the motor (56), and a support structure (12) supporting the motor pump unit (60) and the bonnet (96). The invention is further developed in that the bonnet (96) can be lowered from a pre-assembly position onto the electrical device (74) and the motor (56) in a first assembly direction (144) and can then be transferred to a final assembly position in a second assembly direction (146) aligned obliquely or perpendicularly to the first assembly direction (144), wherein in the final assembly position it can be latched and / or screwed to the supporting structure (12) and has a retaining element (94) which in the final assembly position engages under a housing section (160) of the electrical device (74) and is supported on the motor (56).

Description

[0001] HIGH-PRESSURE CLEANING DEVICE

[0002] The invention relates to a high-pressure cleaning device, comprising a motor pump unit having a motor and a pump driven by the motor, and further comprising an electrical device arranged above the motor with respect to a horizontal position of use of the high-pressure cleaning device for controlling the motor and a hood covering the electrical device and the motor, as well as a support structure supporting the motor pump unit and the hood.

[0003] Such high-pressure cleaning devices are used, for example, to clean surfaces by spraying a pressurized cleaning fluid, such as water, onto the surface. The cleaning fluid is pressurized by a pump driven by a motor. The motor and pump together form a motor-pump unit supported by a supporting structure, such as a support frame. To control the motor, the high-pressure cleaning device has an electrical device arranged above the motor relative to a horizontal operating position of the high-pressure cleaning device. To protect the electrical device and the motor, such high-pressure cleaning devices have a hood covering the electrical device and the motor.

[0004] Publication WO 2013 / 123967 A1 discloses a high-pressure cleaning device in which the hood is pivotably mounted on a support frame about a horizontal pivot axis. In an open position, the hood exposes the motor pump unit, and in a closed position, the hood covers the motor pump unit. The pivotal mounting of the hood on the support frame is achieved by means of bearing pins, each of which extends through a stirring piece of the support frame and is received by a bearing bush of the hood.

[0005] The object of the invention is to further develop a high-pressure cleaning device of the generic type in such a way that the hood is easier to assemble and has a high mechanical load capacity.

[0006] This object is achieved according to the invention in a high-pressure cleaning device of the type mentioned at the outset in that the hood can be placed onto the electrical device and the motor for assembly from a pre-assembly position in a first assembly direction and can then be transferred into a final assembly position in a second assembly direction oriented obliquely or perpendicularly to the first assembly direction, wherein it can be latched and / or screwed to the support structure in the final assembly position and has a holding element which, in the final assembly position, engages under a housing section of the electrical device and is supported on the motor.

[0007] In the high-pressure cleaning device according to the invention, the hood can be mounted from a pre-assembly position, in which it is arranged, for example, above the electrical device and the motor, and first placed onto the electrical device and the motor in a first assembly direction. The hood can then be moved in a second assembly direction, which is oriented obliquely or perpendicularly to the first assembly direction, into a final assembly position in which it can be latched and / or screwed to the support structure. The hood has a retaining element which, in the final assembly position of the hood, engages beneath a housing section of the electrical device and is supported on the motor.This makes mounting the cover on the motor-pump unit very easy. The retaining element, which in the final assembly position engages beneath a housing section of the electrical device and rests on the motor, ensures in a simple design that the cover can rest on the motor when subjected to a vertically downward force and on the electrical device when subjected to a vertically upward force. The cover thus exhibits high mechanical strength, ensuring reliable protection, particularly for the electrical device and the motor.

[0008] It is advantageous if the first mounting direction is vertical relative to a horizontal operating position of the high-pressure cleaning device, and the second mounting direction is horizontal relative to a horizontal operating position of the high-pressure cleaning device. This allows the hood to be lowered vertically from above toward the electrical device and then moved horizontally until the retaining element engages in a gap between a housing section of the electrical device and the motor.

[0009] It is advantageous if the hood can be locked to the supporting structure when moving into the final assembly position.

[0010] The holding element is preferably arranged on an inner side of the hood.

[0011] In an advantageous embodiment of the invention, the hood can be lowered vertically from a pre-assembly position and then moved substantially horizontally into the final assembly position, with the retaining element being arranged on the inside of an end wall of the hood. When the hood is lowered onto the electrical device, the retaining element can initially assume a distance from a front side of the housing of the electrical device, and then the hood can be moved rearward in a horizontal direction such that the retaining element arranged on the inside of the end wall of the hood engages in the space between the housing section of the electrical device and the motor and comes to rest on the one hand on the top side of the motor and on the other hand on the underside of the housing section of the electrical device.It is advantageous if bearing elements interacting in pairs are arranged on the hood and on the support structure, wherein, when the hood transitions from the pre-assembly position to the final assembly position, one of the paired bearing elements engages with the other of the paired bearing elements, in particular, dips into the other bearing element or passes through it. For example, a first bearing element arranged on the hood can accommodate or be accommodated by a second bearing element arranged on the support structure when the hood is placed on the electrical device and the motor.

[0012] In particular, it can be provided that the bearing elements interacting in pairs engage with each other when the hood reaches its final assembly position. For this purpose, the bearing elements interacting in pairs can form locking elements interacting in pairs to form a locking connection, for example, resilient locking projections and locking receptacles.

[0013] Preferably, at least two first bearing elements are arranged on the hood, each of which interacts with a second bearing element arranged on the support structure to fix the hood to the support structure.

[0014] It is particularly advantageous if one of the bearing elements interacting in pairs forms a slot-like bearing receptacle and the other of the bearing elements interacting in pairs forms a bearing journal, wherein the bearing receptacle has a first receptacle section followed by a second receptacle section, wherein the bearing journal initially engages in the first receptacle section when the cover is placed on the electrical device and the motor and then engages in the second receptacle section when the cover is subsequently transferred into the final assembly position, and can be locked to the second receptacle section in the final assembly position of the cover. If the cover is placed on the electrical device and the motor in the first assembly direction, the bearing journal can move along the first receptacle section, wherein it can, for example, reach through the first receptacle section or dip into it.If the cover is subsequently moved relative to the electrical device and the motor in the second assembly direction, the bearing pin can move along the second receiving section, for example, reaching through the second receiving section or inserting into it. When the cover reaches its final assembly position, the bearing pin can lock into the second receiving section. For this purpose, the second receiving section can, for example, have an end region facing away from the first receiving section, which forms a locking receptacle for the bearing pin.

[0015] The bearing receptacle is advantageously arranged on the hood, with the first receptacle section adjoining an edge of the hood, and the bearing pin is advantageously arranged on the support structure. If the hood is placed on the electrical device and the motor in the first assembly direction, starting from its pre-assembly position, the bearing pin arranged on the support structure can enter the first receptacle section, which adjoins an edge of the hood. If the hood is subsequently moved in the second assembly direction relative to the support structure, the bearing pin can move along the second receptacle section in order to lock with the second receptacle section in the final assembly position of the hood.

[0016] In a preferred embodiment of the invention, the hood has a ceiling wall from which an end wall and a rear wall opposite the end wall as well as two opposite side walls protrude, wherein a first bearing element is arranged on each of the side walls, which interacts with a second bearing element arranged on the support structure. In such an embodiment of the invention, the hood has two opposite first bearing elements, each of which interacts with a second bearing element arranged on the support structure to secure the hood to the support structure. The first bearing elements arranged on the side walls of the hood, like the second bearing elements arranged on the support structure, can be arranged mirror-symmetrically to a central longitudinal plane of the high-pressure cleaning device. The first bearing elements can, for example, be designed as bearing receptacles.

[0017] It is advantageous if the support structure comprises a support frame having two opposing side frame parts that are rigidly connected to each other via a first cross member and a second cross member, with a second bearing element arranged on each of the side frame parts. The second bearing elements can be designed, for example, as bearing pins.

[0018] It is advantageous if the high-pressure cleaning device has a U-shaped push bar which comprises a first push bar leg and a second push bar leg which are connected to one another via a push bar web, wherein the push bar legs are each connected to a side frame part and the push bar web forms a handle.

[0019] The support structure preferably has a support plate on which the motor is mounted. The support plate can, for example, be designed in the form of a metal sheet that is bent for stiffening.

[0020] In an advantageous embodiment of the invention, the hood has several supporting walls that rest on the support plate in the final assembly position of the hood. This gives the hood a particularly high mechanical load-bearing capacity, especially when subjected to vertically downward forces.

[0021] In a preferred embodiment of the invention, at least one supporting wall has one or more supporting ribs that rest against the support plate in the final assembly position of the hood. The supporting ribs stiffen the hood and, via the supporting ribs, allow forces acting on the hood from above to be transferred to the support plate.

[0022] It is advantageous if the hood has two opposing support walls, each of which adjoins a side wall of the hood in the direction of the support plate. These support walls can, for example, form extensions of the side walls of the hood. This allows the side walls to maintain a distance from the support plate even in the final assembly position of the hood, while the support walls extend to the support plate and can be supported against it.

[0023] In an advantageous embodiment of the invention, a particularly high mechanical load capacity is achieved by the hood having a rear support wall that can be screwed to the support plate. The rear support wall can, for example, form an extension of a rear wall of the hood. This allows the rear wall to maintain a distance from the support plate even in the final assembly position of the hood, whereas the rear support wall extends to the support plate, rests against it, and can be screwed to the support plate.

[0024] In an advantageous embodiment of the invention, an end region of the rear support wall facing the support plate has a bevel which has at least one bore through which a connecting screw can be passed in order to screw the rear support wall to the support plate.

[0025] It is particularly advantageous if the pump of the high-pressure cleaning device protrudes from the hood when the hood is in its final assembly position. This makes it easier for the user to carry out inspection, adjustment and maintenance work on the pump without having to remove the hood or move it into a release position. For example, the pump can be provided with a control element for adjusting the pressure and / or the flow rate of the liquid pumped by the pump, with the control element being easily accessible to the user. It can also be provided for a filter element to be arranged at a pump inlet, which the user can replace or check as needed, with easy access to the filter element without having to remove the hood.The design of the hood in such a way that the pump protrudes from the hood in the final assembly position also has the advantage that the pump can be cooled more effectively, so that reliable heat dissipation from the pump is guaranteed even during long operating times of the high-pressure cleaning device.

[0026] It is advantageous if the hood has a recess on its front in relation to a main direction of movement of the high-pressure cleaning device, with the pump passing through the recess.

[0027] It is particularly advantageous if the recess is located between two support walls of the hood, which rest on the support plate of the supporting structure and advantageously carry stiffening elements on their inner side, such as support ribs, which come into contact with the support plate in the final assembly position of the hood. The support walls adjacent to the recess on the sides give the hood a high mechanical load-bearing capacity despite the provision of the front recess.

[0028] The following description of an advantageous embodiment of the invention serves to explain it in more detail in conjunction with the drawings. They show:

[0029] Figure 1: a perspective view of a high-pressure cleaning device, viewed diagonally from the front, with the high-pressure cleaning device in a horizontal position of use on a support surface;

[0030] Figure 2: a perspective view of the high-pressure cleaning device from Figure 1, viewed diagonally from behind; Figure 3: a perspective view of the high-pressure cleaning device according to Figure 1, with a hood in a pre-assembly position;

[0031] Figure 4: an enlarged view of detail X from Figure 3;

[0032] Figure 5: a perspective view of the hood from Figure 3, viewed diagonally from below;

[0033] Figure 6: a longitudinal sectional view of the high-pressure cleaning device from Figure 1;

[0034] Figure 7: an enlarged view of detail Y from Figure 6;

[0035] Figure 8: an enlarged view of detail Z from Figure 6;

[0036] Figure 9: a perspective view of a support structure of the high-pressure cleaning device from Figure 1, to which the hood is attached.

[0037] The drawing schematically shows a preferred embodiment of a high-pressure cleaning device according to the invention, designated overall by the reference numeral 10. The high-pressure cleaning device 10 is designed to be movable and has a support structure 12 with a support frame 14 comprising a first side frame part 16 and a second side frame part 18, which lie opposite one another and are rigidly connected to one another via a first cross member 20 and a second cross member 22. The cross members 20 and 22 are aligned parallel to one another and perpendicular to a main direction of movement of the high-pressure cleaning device 10. The main direction of movement is illustrated in Figures 1 and 6 by the arrow 24. The side frame parts 16 and 18 are each U-shaped and have a first side frame leg 26 and 28, respectively, and a second side frame leg 30 and 32, respectively, which are rigidly connected to one another via a side frame web 34 and 36, respectively.The first side frame legs 26, 28 are integrally connected to the first cross member 20, which is arranged at a distance from a support surface 38 of the high-pressure cleaning device 10. The first side frame legs 26, 28 are aligned obliquely to the vertical with respect to a horizontal position of use of the high-pressure cleaning device 10, which is illustrated, for example, in Figures 1 and 6, and are each connected via a side frame web 34 or 36 to a second side frame leg 30, 32, which is also aligned obliquely to the vertical in the horizontal position of use of the high-pressure cleaning device 10. The side frame webs 34, 36 are aligned horizontally in the horizontal position of use of the high-pressure cleaning device 10. The second side frame legs 30, 32 are rigidly connected to one another approximately centrally via the second cross member 22.

[0038] A push bar leg 33 and 35 of a push bar 37 are each connected to the second side frame legs 30, 32. The push bar legs 33, 35 are integrally connected to one another via a push bar web 39. The push bar web 39 forms a handle that can be grasped by the user of the high-pressure cleaning device 10.

[0039] The side frame webs 34, 36 each carry a support element 40, 42 on their underside, which supports the support frame 14 on the support surface 38 in the horizontal position of use of the high-pressure cleaning device 10.

[0040] The support structure 12 also has a third cross member 44, which is aligned parallel to the first cross member 20 and second cross member 22 and is arranged behind the second cross member 22 with respect to the main direction of movement 24. A first wheel 46 and a second wheel 48 are mounted on the third cross member 44 for rotation about a common axis of rotation 50. To move the high-pressure cleaning device 10 along the support surface 38, the user can pivot the high-pressure cleaning device 10 backward about the axis of rotation 50 using the push bar 37, similar to a hand truck.

[0041] The support structure 12 further includes a support plate 52 in the form of a base plate 54, which is bent for stiffening purposes. In the horizontal operating position of the high-pressure cleaning device 10, the support plate 52 is oriented horizontally. The support plate 52 is supported by the second cross member 22 and the third cross member 44.

[0042] A motor 56 is mounted on the support plate 52, which, in combination with a pump 58 driven by the motor 56, forms a motor-pump unit 60 of the high-pressure cleaning device 10. The motor-pump unit 60 is aligned in the main direction of movement 24, with the pump 58 flanged to a front side 62 of the motor 56. In the present case, the pump 58 is designed as a crankshaft pump; alternatively, the pump 58 could also be designed as a wobble plate pump.

[0043] The pump 58 has a pump inlet 64 to which a filter element 66 is connected. The filter element 66 has a supply connection 68 to which a supply line, for example a supply hose, can be connected, which is known per se and therefore not shown in the drawing for the sake of clarity. The pump 58 can be supplied with pressurised cleaning fluid, for example water, via the supply line. The cleaning fluid pressurised by the pump 58 can be discharged via a pump outlet 70. A pressure line, for example a pressure hose, which is known per se and therefore not shown for the sake of clarity, can be connected to the pump outlet 70.

[0044] The pump 58 has an adjusting element 72 for adjusting the pressure and / or flow rate of the cleaning fluid pressurized by the pump 58. An electrical device 74 is arranged on the motor 58 for controlling the motor 56. The electrical device 74 has a housing 76 with an upper housing part 78 and a lower housing part 80. The housing 76 forms a splash guard for electrical components of the electrical device 74, which are arranged in the housing 76.

[0045] The housing lower part 80 has, relative to the main movement direction 24, a recess 86 on its front side 84, which, in combination with a front wall section 88 of a motor housing 90 of the motor 56, defines an engagement space 92 into which a retaining element 94 of a hood 96 of the high-pressure cleaning device 10 can be inserted when the hood 96 is moved into its final assembly position. This will be explained in more detail below.

[0046] In its final assembly position, which is shown, for example, in Figures 1 and 6, the hood 96 covers the electrical device 74 and the motor 56, but not the pump 58. The pump 58 protrudes from the hood 96.

[0047] The hood 96 has a top wall 98 which forms a recess 100 for storing, for example, accessories of the high-pressure cleaning device. An end wall 104 and a rear wall 106 opposite this, as well as a first side wall 108 and a second side wall 110, project downwards from the top wall 98 in the direction of the installation surface 38. The two side walls 108, 110 lie opposite one another and have an edge 112 and 114, respectively, which, in the final assembly position of the hood 96, is a considerable distance from the support plate 52. In the final assembly position of the hood 96, the rear wall 106 extends to the level of the edges 112, 114 of the side walls 108, 110, so that the rear wall 106 is also a considerable distance from the support plate 52 in the final assembly position of the hood 96. The end wall 104 has an edge 116, which is also at a significant distance from the support plate 52.In the transition area between the first side wall 108 and the end wall 106, a first support wall 118 adjoins the first side wall 108, and in the transition area between the second side wall 110 and the end wall 104, a second support wall 120 adjoins the second support wall 110, which is opposite the first support wall 118 and is designed in the same way as the first support wall 118. The support walls 118, 120 have support ribs 122 on their inside and, in the final assembly position of the hood 96, extend downwards towards the support plate 52 so that the support ribs 122 rest against the support plate 52, so that the support walls 118, 120 support the hood 96 on the support plate 52.

[0048] Adjacent to the rear wall 106 is a third support wall 124, the end portion of which, facing the support plate 52, forms a cant 126 that rests on the support plate 52 in the final assembly position of the hood 96 and can be screwed to the support plate 52 by means of connecting screws. A connecting screw 128 is shown in Figure 8.

[0049] The side walls 108, 110 each have a first bearing element 130 or 132, which cooperates with a second bearing element 134 or 136 arranged on the support structure 12 to secure the hood 96. The first bearing elements 130, 132 are identically designed and each form a slot-like bearing receptacle 138, which has a first receiving section 140 and a second receiving section 142. The first receiving section 140 extends in a first assembly direction of the hood 96 and opens into the edge 112 or into the edge 114 of the side walls 108, 110. The first assembly direction is oriented vertically with respect to a horizontal position of use of the high-pressure cleaning device 10 and is illustrated in Figure 6 by the arrow 144. The first receiving section 140 is followed by the second receiving section 142, which extends opposite to a second mounting direction of the hood 96.The second mounting direction is illustrated in Figure 6 by arrow 146 and is oriented horizontally relative to the horizontal position of use of the high-pressure cleaning device 10. At its end region facing away from the first receiving section 140, the second receiving section 142 forms a locking receptacle 148. This is particularly evident in Figure 4.

[0050] The second bearing elements 134, 136 are identically designed and each form a bearing pin 150 which is arranged at a short distance from the free end of a second side frame leg 30 or 32 of the side frame parts 16, 18 and is welded to a second side frame leg 30, 32.

[0051] The aforementioned retaining element 94 is arranged on the inner side 151 of the end wall 104 of the hood 96. This is particularly evident in Figures 5 and 6. The retaining element 94 has an upper wall section 152 and two opposing side wall sections 154, 156, which are integrally formed on the inner side 151 of the end wall 104. Adjoining the side wall sections 154, 156 at a distance from the end wall 104 is a rear wall section 158, via which the side wall sections 154, 156 are integrally connected to one another.

[0052] To assemble the hood 96, it can be positioned above the electrical device 74 in a pre-assembly position at a distance from the latter. This is illustrated in Figure 3. The hood 96 can then be lowered in the first assembly direction 144, with the bearing pins 150 each engaging a first receiving section 140 of a bearing receptacle 138.

[0053] The hood 96 can then be moved in the second assembly direction 146, with the holding element 94 inserting into the engagement space 92 and engaging beneath a front housing section 160 of the lower housing part 80 of the electrical device 74 and being supported on the motor 56. When the hood 96 reaches its final assembly position, the bearing pins 150 each insert into a locking receptacle 148 of the second receptacle section 142 of a bearing receptacle 138 and, in combination with a bearing receptacle 138, form a locking connection between the hood 96 and the support structure. As already mentioned, in its final assembly position, the hood 96 is supported on the support plate 52 via the first support wall 118, the second support wall 120, and the third support wall 124, wherein the third support wall 124 can be screwed to the support plate 52 by means of connecting screws 128.

[0054] The first support wall 118, in combination with the second support wall 120 and the end wall 104, defines a front-side recess 162 of the hood 96. In the final assembly position of the hood 96, the pump 98 protrudes from the hood 96 by extending through the recess 162. This allows the user of the high-pressure cleaning device 10 direct access to the pump 58 without being obstructed by the hood 96. The user can therefore perform inspection, adjustment, and maintenance work on the pump 58 without having to remove the hood 96. For example, the user has the option of replacing the filter element 66 or adjusting the pressure and / or flow rate of the cleaning fluid delivered by the pump 58 using the adjustment element 72 without having to dismantle the hood 96. The free access to the pump 58 also enables improved heat dissipation from the pump 58.Despite the relatively large recess 162, the hood 96 has a high mechanical load capacity. This high load capacity is particularly contributed to by the support walls 118, 120 arranged laterally next to the recess 162, which are supported on the support plate 52 by means of the support ribs 122 that stiffen the support walls 118, 120.

[0055] From the foregoing, it is clear that the hood 96 can be easily assembled and fixed in its final assembly position by the user, whereby it is not necessary to move the hood 96 from its final assembly position to a release position for inspection, adjustment and maintenance work on the pump 58.

Claims

PATENT CLAIMS High-pressure cleaning device comprising a motor-pump unit (60) having a motor (56) and a pump (58) driven by it, and further comprising an electrical device (74) arranged above the motor (56) with respect to a horizontal operating position of the high-pressure cleaning device (10) for controlling the motor (56) and a hood (96) covering the electrical device (74) and the motor (56), as well as a support structure (12) supporting the motor-pump unit (60) and the hood (96), characterized in that the hood (96) can be placed onto the electrical device (74) and the motor (56) from a pre-assembly position in a first assembly direction (144) and can then be moved into a final assembly position in a second assembly direction (146) oriented obliquely or perpendicularly to the first assembly direction (144).wherein the hood (96) can be snapped and / or screwed to the support structure (12) in the final assembly position and has a retaining element (94) which, in the final assembly position, engages a housing section (160) of the electrical device (94) and is supported on the motor (56). High-pressure cleaning device according to claim 1, characterized in that, with respect to a horizontal operating position of the high-pressure cleaning device (10), the first mounting direction (144) is vertical and the second mounting direction (146) is horizontal. High-pressure cleaning device according to claim 1 or 2, characterized in that the retaining element (94) is arranged on an inner side of the hood (96). High-pressure cleaning device according to one of the preceding claims, characterized in that bearing elements (130, 134; 132, 136) cooperating in pairs are arranged on the hood (96) and the support structure (12), wherein, when the hood (96) transitions from the pre-assembly position to the final assembly position, one of the cooperating bearing elements (134; 136) engages in the other of the cooperating bearing elements (130; 132).High-pressure cleaning device according to claim 4, characterized in that one of the cooperating bearing elements (130, 132; 134, 136) forms a slot-like bearing receptacle (138) and the other of the cooperating bearing elements (130, 132; 134, 136) forms a bearing pin (150), wherein the bearing receptacle (138) has a first receiving section (140) and a second receiving section (142), wherein the bearing pin (150) engages first in the first receiving section (140) when the hood (96) is placed on the electrical device (74) and the motor (56) and, when the hood (96) is subsequently moved into the second receiving section (142), engages in the second receiving section (142) and can be locked into the second receiving section (142) in the final assembly position of the hood (96).High-pressure cleaning device according to claim 5, characterized in that the bearing receptacle (138) is arranged on the hood (96), wherein the first receiving section (140) of the bearing receptacle (138) adjoins an edge (112, 114) of the hood (96), and that the bearing pin (150) is fixed to the support structure (12). High-pressure cleaning device according to claim 4, 5 or 6, characterized in that the hood (96) has a ceiling wall (98) comprising an end wall (104) and a rear wall (106) opposite it, as well as two opposing side walls. (108, 110) protrude, wherein a first bearing element (130, 132) is arranged on each of the side walls (108, 110), which interacts with a second bearing element (134, 136) arranged on the support structure. High-pressure cleaning device according to claim 7, characterized in that the support structure (12) comprises a support frame (14) having two opposing side frame parts (16, 18) which are rigidly connected to each other via a first crossbeam (20) and a second crossbeam (22), wherein a second bearing element (134, 136) is arranged on each of the side frame parts (16, 18). High-pressure cleaning device according to one of the preceding claims, characterized in that the support structure (12) has a support plate (52) on which the motor (56) is mounted. High-pressure cleaning device according to claim 9, characterized in that the hood (96) has several support walls (118, 120, 124) which are supported on the support plate (52) in the final assembly position.High-pressure cleaning device according to claim 10, characterized in that at least one support wall (118, 120) has one or more support ribs (122) which, in the final assembly position of the hood (96), bear against the support plate (52). High-pressure cleaning device according to claim 10 or 11, characterized in that the hood (96) has two opposing support walls (118, 120) which each connect to a side wall (108, 110) of the hood (96) in the direction of the support plate (52). High-pressure cleaning device according to claim 10, 11 or 12, characterized in that the hood (96) has a rear support wall (124) which can be screwed to the support plate (52). A high-pressure cleaning device according to any one of the preceding claims, characterized in that the pump (58) projects out of the hood (96) in the final assembly position of the hood (96). A high-pressure cleaning device according to claim 14, characterized in that the hood (96) has a recess (162) on its front side with respect to a main direction of movement (24) of the high-pressure cleaning device (10), wherein the pump (58) extends through the recess (162). A high-pressure cleaning device according to claim 15, characterized in that the recess (162) is arranged between two support walls (118, 120) of the hood, which are supported on a support plate (52) of the support structure (12). A high-pressure cleaning device according to claim 16, characterized in that the support walls (118, 120) have support ribs (122) on their inner side, which bear against the support plate (52) in the final assembly position of the hood (96).

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